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2014/10/15 ¤U¤È 10:14:39
iphone Programming Glossary: sumshow do I calculate heightForRowAtIndexPath when the cell is not even constructed yet? http://stackoverflow.com/questions/5294356/how-do-i-calculate-heightforrowatindexpath-when-the-cell-is-not-even-constructed text sizeWithFont and its variants can do it. If you have images etc. then you can grab their dimensions and do some sums. In addition to those steps you may also want to scroll the tableView a bit after switching modes. If the heights of your.. the tableView to collect the new heights and the new table cells. There may be a smarter way of doing this. I do some sums to make the scroll adjustment based on the difference between the origin.y of the tableView cellForRowAtIndexPath of the..
KVO vs NSNotification vs protocol/delegates? http://stackoverflow.com/questions/7864838/kvo-vs-nsnotification-vs-protocol-delegates
iOS5 show numeric keypad by default without using type=“number” or type=“tel” http://stackoverflow.com/questions/8222528/ios5-show-numeric-keypad-by-default-without-using-type-number-or-type-tel added their own validation to input type number form fields. This is causing some issues see this question below which sums it up Input type 'number' new validation removes leading zeros and formats number in Safari for iPhone iOS5 and latest Safari..
Blur an UIImage on change of slider http://stackoverflow.com/questions/8758433/blur-an-uiimage-on-change-of-slider malloc dataSize destData malloc dataSize memcpy finalData srcData dataSize memcpy destData srcData dataSize int sums gaussFactor size_t i x y k int gauss_sum 0 size_t radius pixelRadius 2 1 int gauss_fact malloc radius sizeof int for i 0.. y 0 y height y for size_t x 0 x width x p1 srcData bpp y width x p2 destData bpp y width x for i 0 i gaussFactor i sums i 0 for k 0 k radius k if y radius 1 1 k height p1 srcData bpp y radius 1 1 k width x else p1 srcData bpp y width x.. k if y radius 1 1 k height p1 srcData bpp y radius 1 1 k width x else p1 srcData bpp y width x for i 0 i bpp i sums i p1 i gauss_fact k for i 0 i bpp i p2 i sums i gauss_sum for size_t y 0 y height y for size_t x 0 x width x p2 destData..
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